CN104085089A - Valve needle guide sleeve - Google Patents
Valve needle guide sleeve Download PDFInfo
- Publication number
- CN104085089A CN104085089A CN201410265184.4A CN201410265184A CN104085089A CN 104085089 A CN104085089 A CN 104085089A CN 201410265184 A CN201410265184 A CN 201410265184A CN 104085089 A CN104085089 A CN 104085089A
- Authority
- CN
- China
- Prior art keywords
- guide sleeve
- sleeve pipe
- needle
- flow guide
- valve needle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000007704 transition Effects 0.000 claims abstract description 7
- 229920003023 plastic Polymers 0.000 abstract description 12
- 239000004033 plastic Substances 0.000 abstract description 12
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 238000003763 carbonization Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/28—Closure devices therefor
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a valve needle guide sleeve which comprises a sleeve pipe and a fixing seat, wherein the center of the sleeve pipe is provided with a valve needle hole; the fixing seat is arranged at the rear end of the sleeve pipe; and a transition gap is arranged at the front end of the sleeve pipe. By the way, sharp corners and dead corners may not be formed between a valve needle and a channel hole due to circular arc transition, the molten plastic can be completely swept away, plastic residues may not be left at corners, product carbonation decomposition may not be led, and the rate of qualified product is high.
Description
Technical field
The present invention relates to flow guide sleeve field, particularly relate to a kind of needle flow guide sleeve.
Background technology
The needle flow guide sleeve of old structure is shorter, while being arranged on flow distribution plate, do not have envelope to fall the runner hole on flow distribution plate, as shown in Figure 1, needle 3 is arranged in needle flow guide sleeve 1, have wedge angle at needle 3 with 5 places, runner hole, when molten plastic process needle, the plastics of sharp corner can not be taken away along with the plastics of molten condition.At high temperature plastics are super can decompose after a period of time in carbonization, flow in product, causes product bad.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of needle flow guide sleeve, can form transition at needle and runner hole place, and molten plastic can be flushed away completely, and it is residual that corner does not have plastics, can not cause product carbonization to be decomposed, and product percent of pass is high.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of needle flow guide sleeve is provided, comprises: sleeve pipe and holder, and described cover tube hub has needle hole; Described holder is arranged on described sleeve pipe rear end; Described sleeve pipe front end is provided with transition breach.
Preferably, the transition breach of described sleeve pipe front end is circular-arc inclined open.
Preferably, on described holder, cover has flow guide sleeve hold-down nut.
The invention has the beneficial effects as follows: the present invention can not form wedge angle, dead angle, and molten plastic can be flushed away completely, and it is residual that corner does not have plastics, can not cause product carbonization to be decomposed.
Brief description of the drawings
Structural representation when Fig. 1 is the use state of flow guide sleeve in prior art;
Fig. 2 is the sectional structure schematic diagram of a kind of needle flow guide sleeve one preferred embodiment of the present invention;
Structural representation when the use state of a kind of needle flow guide sleeve shown in Fig. 3;
In accompanying drawing, the mark of each parts is as follows: 1, needle flow guide sleeve; 2, flow guide sleeve hold-down nut; 3, needle; 4, flow distribution plate; 5, runner hole; 11, sleeve pipe; 12, holder; 13, inclined open.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made to more explicit defining.
Refer to Fig. 2 and Fig. 3, the embodiment of the present invention comprises:
A kind of needle flow guide sleeve, comprising: sleeve pipe 11 and holder 12, and described sleeve pipe 11 centers have needle hole, and needle 3 is through the needle hole on sleeve pipe; Described holder 12 is arranged on described sleeve pipe 11 rear ends, and flow guide sleeve hold-down nut 2 is enclosed within on holder 12; Described sleeve pipe 11 front ends are provided with circular-arc inclined open 13.Flow guide sleeve hold-down nut 2 is fixed on needle flow guide sleeve 1 on flow distribution plate 4, and flow guide sleeve 1 envelope is crossed the runner hole 5 on described flow distribution plate 4, at needle 3 and runner hole 5 joints, owing to there being the transitional function of circular-arc inclined open 13, needle 3 does not have wedge angle and dead angle with runner hole 5, molten plastic can be flushed away completely, and it is residual that corner does not have plastics, can not cause product carbonization to be decomposed.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (3)
1. a needle flow guide sleeve, is characterized in that, comprising: sleeve pipe and holder, and described cover tube hub has needle hole; Described holder is arranged on described sleeve pipe rear end; Described sleeve pipe front end is provided with transition breach.
2. a kind of needle flow guide sleeve according to claim 1, is characterized in that: the transition breach of described sleeve pipe front end is circular-arc inclined open.
3. a kind of needle flow guide sleeve according to claim 1, is characterized in that: on described holder, cover has flow guide sleeve hold-down nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410265184.4A CN104085089A (en) | 2014-06-16 | 2014-06-16 | Valve needle guide sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410265184.4A CN104085089A (en) | 2014-06-16 | 2014-06-16 | Valve needle guide sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104085089A true CN104085089A (en) | 2014-10-08 |
Family
ID=51632903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410265184.4A Pending CN104085089A (en) | 2014-06-16 | 2014-06-16 | Valve needle guide sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104085089A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104908231A (en) * | 2015-04-22 | 2015-09-16 | 苏州好特斯模具有限公司 | Integral sealant system for color changing |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1188537A2 (en) * | 2000-09-13 | 2002-03-20 | Thermoplay S.p.A. | A heated head for feeding an injector nozzle for moulding plastics materials |
| US20060083811A1 (en) * | 2004-10-19 | 2006-04-20 | Mold-Masters Limited | Manifold plug for an injection molding apparatus |
| CN202826279U (en) * | 2012-08-29 | 2013-03-27 | 东莞市大金大钢材模具有限公司 | Hot runner valve needle guide sleeve device |
| US20130287883A1 (en) * | 2011-01-12 | 2013-10-31 | Mht Mold & Hotrunner Technology Ag | Injection-Moulding Machine with a Shut-Off Needle |
| CN103507228A (en) * | 2013-09-16 | 2014-01-15 | 严杰 | Valve needle guide sleeve |
-
2014
- 2014-06-16 CN CN201410265184.4A patent/CN104085089A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1188537A2 (en) * | 2000-09-13 | 2002-03-20 | Thermoplay S.p.A. | A heated head for feeding an injector nozzle for moulding plastics materials |
| US20060083811A1 (en) * | 2004-10-19 | 2006-04-20 | Mold-Masters Limited | Manifold plug for an injection molding apparatus |
| US20130287883A1 (en) * | 2011-01-12 | 2013-10-31 | Mht Mold & Hotrunner Technology Ag | Injection-Moulding Machine with a Shut-Off Needle |
| CN202826279U (en) * | 2012-08-29 | 2013-03-27 | 东莞市大金大钢材模具有限公司 | Hot runner valve needle guide sleeve device |
| CN103507228A (en) * | 2013-09-16 | 2014-01-15 | 严杰 | Valve needle guide sleeve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104908231A (en) * | 2015-04-22 | 2015-09-16 | 苏州好特斯模具有限公司 | Integral sealant system for color changing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141008 |